added categories to the accountspage

src/util/qstringhash.hpp

@@ -0,0 +1,14 @@
+#pragma once
+
+#include <QHash>
+#include <QString>
+
+namespace std {
+template <>
+struct hash<QString> {
+    std::size_t operator()(const QString &s) const
+    {
+        return qHash(s);
+    }
+};
+}  // namespace std